Tool



P, TAYLoR.

* TooL.

APPLICATION FILED JUNE I0. I920.

1,424,865 l; I lPatentedAug. 8, 1922,

2 SHEETS-SHEET 2.

, MfJ@/m;

` 9 M4@ ,6MM/auw PETER TAYLOR, OF OTTIVIWA, IOWA.

ITOOL.

Specification of Application filed .Tune 10,

T0 all 'zo 7mm it may concern Be it lrnown that l, Perrin TAYLOR, a citi- Zen olf the United States, residing` at Qttumwa, in the county ot iilapello and State of iowa, have invented certain new and use tullmprovements in Tools, of which the following is a specication.

My invention relates to machine tools, and particularly to a tool whereby a plurality t cylindrical surfaces may be machined or finished at a single operation. y

li/y invention relates to a novel tool l'or linisl'iing metal hubs and the like.

l carry out my invention by mounting on a spindle a plurality olf' heads, one of which may be provided with cutting tools 'tor engaging an outer sur'tace or' a cylindrical object, such as a hub, and a, second head carrying cutting elements torengaging interior surfaces ot the same article.

An object oi? my inventionl is'to provide an improved machine tool whereby a plu'- rality of cuts may be made on a cylindrical object at a single operation.

Another object is to provide a machine tool which will be efiicient in operation and will reduce the cost ot machining hubs and the like.

The above and other objects will be apparent from the specification and drawings, and will be particularly pointed out inthe appended claims.

ln the drawings,-

Figure 1 is an end view or thepreterred embodiment oi' my invention;

Figure 2 is a plan view oit Figure l; and YFigure 3 is a vertical sectional view oli m invention as used in connection with a hu i such as that oit amine car wheel,

l have shown my invention in connectifni with the machiningl ot a cast metal wheel such as a mine car wheel similar to that shown in my co-pending application Serial No. 374,052, and have arranged the cutting elements so that iour cutting operations may be performed at one time.

in the drawings, 5 represents a machine spindle, which in some types of machines is caused to rotate while the article being machined, which, in this instance, is a cast metal wheel 6, is held on a table. ln other types ot machines the spindle would be lined, while the wheel 6 rotated. At the end of the spindle 5 the head 7 is mounted, the mounting in the illustration shown being that of a double dowel pin 8, so that the tration shown the head latented Aue. 8, '1922.

Serial No. 387,814.

Letters Patent.

head may be readily applied to and removed from the spindle The head 7 is provided with' a plurality ofi cutters 9 which may be 'removably supported in the head, in accordance with standard practice. ln the illus- 7 has an extension head 10 which is smaller in diameter than the head 7, and this head 10 in like manner is provided with cutting elements 11.

vlitlountedexteriorly of the hub ot the wheel .6 and in keyed relation to the shaft 5 is a third head 12. tool holders 13 for removably supporting cutting tools lil. ln the arrangement shown the head 12 is adapted to be longitudinally adjustable along the 'spindle 5; The means Awhereby pre'lfer to secure the adjustable 'mounting ot the head 12 'includes a key 15 which is in splined relation vwith the head 12, so that the head 12 may be moved there- This head is provided with i along, at the same time having rotative connection with the spindle ller securing the Yhead 12 in lengthwise adjusted postion along 'the spindle, a set screw 16 or other means may be employed which bears against the .hey 15. The head 12 is provided with other cutting elements 17 removably retained in position by set screws 18 or other clamping means. The cutting elements 17 in the form shown herein are adapted to dress the rear end or the hub ot the wheel 6.

With reference to Figure 3, it will be noted that a partition 19 extends across the interior ofthe hub, which partition has a centrally disposed opening 20. 1t is to machine this or a similar opening that the smaller head 10 is adapted to cooperate with the larger head 7 carried a the end oli the spindle 5. l t will be noted that the advance oil" the spindle 5 with respect to the hub being machined is such that the interior of the hub may he properly machined. ln the illustration the advance ot the head 7 may be greater than the advance ot the head 12 to machine a portion ot the exterior `or' the hub. 1n like manner the cutting elements 17 should not advance the same amount as the head 7 is advanced.

To effect the proper cutting relation between the cutting elements 1a and 17 and the cutting elements on the heads 7 and 10, the head 12 is secured along the spindle 5 in such manner as to cause its cutting elements to engage the surfaces where each is machined at such time in the relative ad- Vance oit the spindle and wheel as to cause these cutting elements to end their path of travel at the same time that the other cutting elements end. made possible by splining the head i2 on the spindle [i and arranging the projectionof the cutters 17 with respect to this head.

It will be noted that by my invention it is possible to machine the hub oit a cast metal .wheel, finishing the bore ot the wheel (which bore may consist oi portions oi? diiierent diameters), a portion of the exterior' oi* the hub, andthe rear end of the hub, rin a single operation. Such a tool, therefore, reduces considerably the cost oit iinishing cast metalhul s and makes possible the turning out of a considerable number of hubs of the same size and dimensions and which will all be machined exactly alike. This feature is especially important in quantity production.

I have shown my invention as applied to a cast metal wheel, but I do not wish to be limited thereto, as my invention is susceptible of application to various kinds of machine work, especially with reference to machining cylindrical objects ci1 varying interior and exterior diameters. The head l2 may be provided with more than two tool holders i3 it other cylindrical surfaces than the oneJ engaged by the tools 14. are to be machined.

It is believed that the operation of my in'- vention is clear. However, a brief description of the operation may not be amiss.

l/Vhen the work is set up, the heads '7,10 and 12 are so positioned on the spindle 5 as to cause the cutting `elements carried by these heads to function at the proper times in the relative lengthwise movement of the spindle with respect to the work, all of which relative adjustment may be easily attained by the usual methods. The work being` set up, one ot' the parts is caused to rotate and with such rotation the parts are brought together with a degree of rapid- Thfis arrangement isA 1,42a,ee1

ity consistent with the work in question, and the work may be stopped when the surfaces to be vmachined have been 'properly engaged by the various cutting elements ot the tool embodying my invention.

Vhile I have described more or less precisely the details of my invention, l do not wish to be understood as limiting myself thereto, as I contemplate changes in term, the proportion oi" parts and substitution of equivalents as circumstances may suggest or render expedient, without departing from the spirit of my invention.

I claim:

l. A tooly for machining hubs and the like, including, in combination, a spindle, a head keyed to said spindle, means for holding said head in adjusted position on said spindle, cutters carried by said head adapted to engage a portion of the outer surfacev of a hub, a second .head mounted upon said spindle in axial alignment therewith, said lsecond head being provided with cutters ttor machining` an interior surface of a hub, and a third head secured-to said second head, said third head being provided with cutters tor machining another portion ot the interior of said hub. i

2. A machine tool for machining hubs and f the like,including, in combination, a spindle, a cutter headhaving arms adapted to overlie the outer surface of a hub, a second head mounted upon said spindle in axial alignment therewith, and' a third head mounted upon said second head, each oi said heads being provided with cutting elements t'or engaging portions of said/hub, and means permitting` adjustment of said cutter head relative to the other heads and for holding. said cutter head in adjusted position.

Signed at Ottumwa, Iowa, this -dayof June, 1920. i

PETER TAYLOR. 

